Evidence map›Paper›PMID 22332468›Full record

ArticleNotes and records of the Royal Society of London2011

Ambiguous cells: the emergence of the stem cell concept in the nineteenth and twentieth centuries.

Andreas-Holger Maehle

Abstract readHistorical Article
In one paragraph

Article in Notes and records of the Royal Society of London, 2011. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 26 papers.

0numbers the graph read from it
0cells of the map it votes in
26citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

26 citing papers in PubMed.

  1. Review
  2. Review
  3. Review
  4. Review
  5. Lung stem cells and respiratory epithelial chimerism in transplantation.European respiratory review : an official journal of the European Respiratory Society · 2025
    Review
  6. Article
  7. The evolutionary cancer gene network theory versus embryogenic hypotheses.Medical oncology (Northwood, London, England) · 2023
    Article
  8. Cancer Cell Culture: The Basics and Two-Dimensional Cultures.Methods in molecular biology (Clifton, N.J.) · 2023
    Article
  9. Review
  10. Review
  11. Cycles and circulation: a theme in the history of biology and medicine.History and philosophy of the life sciences · 2021
    Article
  12. Review
  13. Article
  14. Review
  15. Review
  16. Unexpected encounter of the parasitic kind.World journal of stem cells · 2019
    Review
  17. Review
  18. Article
  19. Review
  20. The dualistic origin of human tumors.Seminars in cancer biology · 2018
    Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

1 author.

Andreas-Holger MaehleDepartment of Philosophy, Durham University, 50 Old Elvet, Durham DH1 3HN, UK. a.h.maehle@durham.ac.uk

Funding

Wellcome Trust 082800
6 · The paper itself

Abstract

This paper elucidates the origins of scientific work on stem cells. From the late nineteenth century onwards, the notion of stem cells became customary in scientific communities of Imperial Germany. Adopting the term Stammzelle from Ernst Haeckel, Theodor Boveri was influential in introducing the concept in embryological studies and early genetics around 1900, describing a capacity of stem cells for self-renewal as well as differentiation. At the same time, blood stem cells were conceptualized by histologists such as Ernst Neumann and Artur Pappenheim in studies of physiological haematopoiesis and various forms of leukaemia. Furthermore, building on Julius Cohnheim's theory that tumours arise from 'embryonic remnants' in the adult body, pathologists aimed at identifying the cells of origin, particularly in the embryo-like teratomas. Embryonic stem cells thus assumed an ambiguous status, partly representing common heritage and normal development, and partly being seen as potential causes of cancer if they had been left behind or displaced during ontogeny. In the 1950s and 1960s experimental research on teratocarcinomas by Leroy Stevens and Barry Pierce in the USA brought together the strands of embryological and pathological work. Alongside the work of Ernest McCulloch and James Till at the Ontario Cancer Institute from the early 1960s on stem cells in haematopoiesis, this led into the beginnings of modern stem cell research.

Indexed as

Stem CellsEuropeHistory, 19th CenturyHistory, 20th CenturyResearchUnited States

Identifiers

PMID22332468
PMCPMC3793240

What OpenQuestion holds

Textmetadata
LicenceTDM
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.